Examples of javax.sound.midi.ShortMessage

javax.sound.midi.ShortMessage
A ShortMessage contains a MIDI message that has at most two data bytes following its status byte. The types of MIDI message that satisfy this criterion are channel voice, channel mode, system common, and system real-time--in other words, everything except system exclusive and meta-events. The ShortMessage class provides methods for getting and setting the contents of the MIDI message.
A number of ShortMessage methods have integer parameters by which you specify a MIDI status or data byte. If you know the numeric value, you can express it directly. For system common and system real-time messages, you can often use the corresponding fields of ShortMessage, such as {@link #SYSTEM_RESET SYSTEM_RESET}. For channel messages, the upper four bits of the status byte are specified by a command value and the lower four bits are specified by a MIDI channel number. To convert incoming MIDI data bytes that are in the form of Java's signed bytes, you can use the conversion code given in the {@link MidiMessage} class description. @see SysexMessage @see MetaMessage @author David Rivas @author Kara Kytle @author Florian Bomers

        MidiEvent midiEvent = midiTrack.get(midiEventIndex);


        MidiMessage midiMessage = midiEvent.getMessage();
        if (midiMessage instanceof ShortMessage) {
            // note
            ShortMessage shortMessage = (ShortMessage) midiMessage;
            int channel = shortMessage.getChannel();
            
            delta = retrieveAdjustedDelta(retrieveSmafTrack(channel), midiEvent.getTick()); 
        } else if (midiMessage instanceof MetaMessage && ((MetaMessage) midiMessage).getType() == 81) {
            // tempo
            delta = retrieveAdjustedDelta(smafTrackNumber, midiEvent.getTick()); // TODO smafTrackNumber �ł����̂��H

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     * @throws NoSuchElementException ���� MIDI �C�x���g���Ȃ�
     * @throws IllegalStateException ���݂̃C�x���g�� ShortMessage �ł͂Ȃ�
     */
    public MidiEvent getNextMidiEvent() throws NoSuchElementException {


        ShortMessage shortMessage = null;


        MidiEvent midiEvent = midiTrack.get(midiEventIndex);
        MidiMessage midiMessage = midiEvent.getMessage();
        if (midiMessage instanceof ShortMessage) {
            shortMessage = (ShortMessage) midiMessage;
        } else {
            throw new IllegalStateException("current is not ShortMessage");
        }


        int channel = shortMessage.getChannel();
        int data1 = shortMessage.getData1();


        for (int i = midiEventIndex + 1; i < midiTrack.size(); i++) {
            midiEvent = midiTrack.get(i);
            midiMessage = midiEvent.getMessage();
            if (midiMessage instanceof ShortMessage) {
                shortMessage = (ShortMessage) midiMessage;
                if (shortMessage.getChannel() == channel &&
                    shortMessage.getCommand() == ShortMessage.NOTE_ON &&
                    shortMessage.getData1() != data1) {
Debug.println("next: " + shortMessage.getChannel() + "ch, " + shortMessage.getData1());
                    return midiEvent;
                }
            }
        }

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     * @throws NoSuchElementException �΂� NoteOff �C�x���g���Ȃ�
     * @throws IllegalStateException ���݂̃C�x���g�� ShortMessage �ł͂Ȃ�
     */
    public MidiEvent getNoteOffMidiEvent() throws NoSuchElementException {


        ShortMessage shortMessage = null;


        MidiEvent midiEvent = midiTrack.get(midiEventIndex);
        MidiMessage midiMessage = midiEvent.getMessage();
        if (midiMessage instanceof ShortMessage) {
            shortMessage = (ShortMessage) midiMessage;
        } else {
            throw new IllegalStateException("current is not ShortMessage");
        }


        int channel = shortMessage.getChannel();
        int data1 = shortMessage.getData1();


        for (int i = midiEventIndex + 1; i < midiTrack.size(); i++) {
            midiEvent = midiTrack.get(i);
            midiMessage = midiEvent.getMessage();
            if (midiMessage instanceof ShortMessage) {
                shortMessage = (ShortMessage) midiMessage;
                if (shortMessage.getChannel() == channel &&
                    shortMessage.getData1() == data1) {


                    noteOffEventUsed.set(i);  // ����t���O on
                    return midiEvent;
                }
            }

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    /** bank, rpn, nrpn */
    public SmafEvent[] getSmafEvents(MidiEvent midiEvent, SmafContext context)
        throws InvalidSmafDataException {


        ShortMessage shortMessage = (ShortMessage) midiEvent.getMessage();
        int channel = shortMessage.getChannel();
//        int command = shortMessage.getCommand();
        int data1 = shortMessage.getData1();
        int data2 = shortMessage.getData2();


        switch (data1) {
        case 0:    // �o���N�Z���N�g MSB
            bankMSB[channel] = data2;
            break;

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        int pitch = context.retrievePitch(this.channel, getNote());
        int midiChannel = context.retrieveChannel(this.channel);
        int velocity = this.velocity == -1 ? context.getVelocity(this.channel) : context.setVelocity(this.channel, this.velocity);


        MidiEvent[] events = new MidiEvent[2];
        ShortMessage shortMessage = new ShortMessage();
        shortMessage.setMessage(ShortMessage.NOTE_ON,
                                midiChannel,
                                pitch,
                                velocity);
//Debug.println("note: " + channel + ": " + pitch);
        events[0] = new MidiEvent(shortMessage, context.getCurrentTick());


        shortMessage = new ShortMessage();
        shortMessage.setMessage(ShortMessage.NOTE_OFF,
                                midiChannel,
                                pitch,
                                0);
        events[1] = new MidiEvent(shortMessage, context.getCurrentTick() + length);

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     * TODO ���̉��܂ŗ]�T����������L�΂��āA����������؂�H(������)
     */
    public SmafEvent[] getSmafEvents(MidiEvent midiEvent, SmafContext context)
        throws InvalidSmafDataException {


        ShortMessage shortMessage = (ShortMessage) midiEvent.getMessage();
        int channel = shortMessage.getChannel();
        int command = shortMessage.getCommand();
        int data1 = shortMessage.getData1();
        int data2 = shortMessage.getData2();
//Debug.println(midiEvent.getTick() + ", " + channel + ", " + command + ", " + (context.retrievePitch(channel, data1) + 45) + ", " + (data2 / 2));


        if (command == ShortMessage.NOTE_OFF ||
            // note on �� velocity 0 �̏ꍇ
            (command == ShortMessage.NOTE_ON && data2 == 0)) {

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            return null;
        } else {
            int midiChannel = context.retrieveChannel(this.channel);


            MidiEvent[] events = new MidiEvent[1];
          ShortMessage shortMessage = new ShortMessage();
          shortMessage.setMessage(ShortMessage.CONTROL_CHANGE,
                                    midiChannel,
                            7,  // ���C���{�����[�� MSB
                            volume);
          events[0] = new MidiEvent(shortMessage, context.getCurrentTick());
            return events;

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    /** */
    public SmafEvent[] getSmafEvents(MidiEvent midiEvent, SmafContext context)
        throws InvalidSmafDataException {


        ShortMessage shortMessage = (ShortMessage) midiEvent.getMessage();
        int channel = shortMessage.getChannel();
        int data2 = shortMessage.getData2();


        int track = context.retrieveSmafTrack(channel);
        int voice = context.retrieveVoice(channel);


        VolumeMessage smafMessage = new VolumeMessage();

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        if (context.getFormatType() == FormatType.HandyPhoneStandard &&
            context.getDrum(this.channel) == ChannelConfiguration.PERCUSSION &&
            context.getSmafTrackNumber() * 4 + this.channel != MidiContext.CHANNEL_DRUM) {
            return null;
        } else {
            ShortMessage shortMessage = new ShortMessage();
            shortMessage.setMessage(ShortMessage.PROGRAM_CHANGE,
                                    midiChannel,
                                    program,
                                    0);
            return new MidiEvent[] {
                new MidiEvent(shortMessage, context.getCurrentTick())

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    /** TODO */
    public SmafEvent[] getSmafEvents(MidiEvent midiEvent, SmafContext context)
        throws InvalidSmafDataException {


        ShortMessage shortMessage = (ShortMessage) midiEvent.getMessage();
        int channel = shortMessage.getChannel();
        int data1 = shortMessage.getData1();


        int track = context.retrieveSmafTrack(channel);
        int voice = context.retrieveVoice(channel);


        ProgramChangeMessage changeVoiceMessage = new ProgramChangeMessage();

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